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如何在打包React Native的JavaScript时防止节点耗尽内存

react-nativeclojurescriptcljsrn
11

当我使用ClojureScript为React Native打包js时，我遇到了以下错误。似乎在打包javascript捆绑包时节点内存不足。这可能更容易发生在使用ClojureScript时，因为生成的js文件通常比普通的js文件要大。

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

<--- Last few GCs --->

  152689 ms: Mark-sweep 1369.3 (1434.8) -> 1362.8 (1434.8) MB, 2794.5 / 0 ms [allocation failure] [GC in old space requested].
  155498 ms: Mark-sweep 1362.8 (1434.8) -> 1362.9 (1434.8) MB, 2808.4 / 0 ms [allocation failure] [GC in old space requested].
  158508 ms: Mark-sweep 1362.9 (1434.8) -> 1362.8 (1434.8) MB, 3010.8 / 0 ms [last resort gc].
  161189 ms: Mark-sweep 1362.8 (1434.8) -> 1362.8 (1434.8) MB, 2680.5 / 0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0xd4b9fdc9e59 <JS Object>
    1: visitQueue [/Users/myproj/node_modules/babel-traverse/lib/context.js:~130] [pc=0x3e89a3f7bd28] (this=0x24a5ec659101 <a TraversalContext with map 0x157972399611>,queue=0x24a5ec659149 <JS Array[1]>)
    2: node [/Users/myproj/node_modules/babel-traverse/lib/index.js:~150] [pc=0x3e89a3e4f23a] (this=0x387a6b7f4301 <JS Function traverse (SharedFunction...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory

<--- Last few GCs --->

  238422 ms: Mark-sweep 1364.8 (1434.8) -> 1364.8 (1434.8) MB, 3377.7 / 0 ms [allocation failure] [GC in old space requested].
  241834 ms: Mark-sweep 1364.8 (1434.8) -> 1364.8 (1434.8) MB, 3412.3 / 0 ms [allocation failure] [GC in old space requested].
  245313 ms: Mark-sweep 1364.8 (1434.8) -> 1364.8 (1434.8) MB, 3478.7 / 0 ms [last resort gc].
  248639 ms: Mark-sweep 1364.8 (1434.8) -> 1364.8 (1434.8) MB, 3326.4 / 0 ms [last resort gc].


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x266dabec9e59 <JS Object>
    1: new constructor(aka NodePath) [/Users/myproj/node_modules/babel-traverse/lib/path/index.js:~61] [pc=0x108980041705] (this=0x1cedf9a7ef69 <a NodePath with map 0x3182f379cf21>,hub=0x266dabe04189 <undefined>,parent=0x3d43337ab49 <a Node with map 0x3182f3798489>)
    3: get [/Users/myproj/node_modules/babel-traverse/lib/path/index.js:~87] [pc=0x10898...

[node-haste] Encountered an error while persisting cache:
> Error: Uncaught error in the transformer worker: /Users/myproj/node_modules/react-native/packager/transformer.js
>     at _transform.then.catch.error (/Users/myproj/node_modules/react-native/packager/react-packager/src/JSTransformer/index.js:99:31)
>     at tryCallOne (/Users/myproj/node_modules/promise/lib/core.js:37:12)
>     at /Users/myproj/node_modules/promise/lib/core.js:123:15
>     at flush (/Users/myproj/node_modules/asap/raw.js:50:29)
>     at _combinedTickCallback (internal/process/next_tick.js:67:7)
>     at process._tickCallback (internal/process/next_tick.js:98:9)
/Users/myproj/node_modules/promise/lib/done.js:10
      throw err;
      ^

Error: Uncaught error in the transformer worker: /Users/myproj/node_modules/react-native/packager/transformer.js
    at _transform.then.catch.error (/Users/myproj/node_modules/react-native/packager/react-packager/src/JSTransformer/index.js:99:31)
    at tryCallOne (/Users/myproj/node_modules/promise/lib/core.js:37:12)
    at /Users/myproj/node_modules/promise/lib/core.js:123:15
    at flush (/Users/myproj/node_modules/asap/raw.js:50:29)
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)
Command /bin/sh failed with exit code 1
5个回答
12

iOS的解决方案是编辑以下文件：ios/YourProjectName.xcodeproj/project.pbxproj并更改以下行（约600）

shellScript = "export NODE_BINARY=node\n../node_modules/react-native/packager/react-native-xcode.sh";

到

shellScript = "export NODE_BINARY='node --max_old_space_size=4092'\n../node_modules/react-native/packager/react-native-xcode.sh";
这行代码在我的project.pbxproj文件中不存在。我的文件看起来像这样： shellScript = "\"${SRCROOT}/Pods/Target Support Files...... - Pedram
@vikeri：谢谢你救了我的命。我在各个地方搜索语法，最终找到了你的。 - Luong Truong
仍然出现“堆内存不足”的错误。有人找到了其他的解决方法吗？ - Rony Azrak
5

对于Android，这也可以在android/app/build.gradle中设置，方法是添加：

project.ext.react = [
   // override which node gets called and with what additional arguments
   nodeExecutableAndArgs: ["node", "--max-old-space-size=4096"]
]

请注意，这必须添加在以下行的上方：
apply from: "../../node_modules/react-native/react.gradle"
3
我找到了在re-natal项目中生成签名APK的方法。 为此，我们必须编辑node_modules/react-native/react.gradle文件。
更改此文件中的第84行。 从...
commandLine(*nodeExecutableAndArgs, "node_modules/react-native/local-cli/cli.js", "bundle", "--platform", "android", "--dev", "${devEnabled}",
    "--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, *extraPackagerArgs)

这个
commandLine(*nodeExecutableAndArgs, "--max-old-space-size=4096", "node_modules/react-native/local-cli/cli.js", "bundle", "--platform", "android", "--dev", "${devEnabled}",
    "--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, *extraPackagerArgs)

要创建生产版本，您必须使用：
lein prod-build

在编译ClojureScript之后，请使用以下命令：
cd android && ./gradlew assembleRelease

生成的 APK 文件可以在 android/app/build/outputs/apk/app-release.apk 路径下找到，已经准备好进行分发。
@GarimaMathur 你确定你在使用ClojureScript吗？ - Slowyn
3

另一种解决方法是通过为生产构建设置--dev true来禁用优化。这样做会带来性能上的劣势，但据我的经验，这是可以接受的。Dev模式还启用了许多运行时检查。您可以通过更改捆绑输出顶部的DEV常量来禁用它们，如下所示：

#!/usr/bin/env python

# Patch jsbundle to set __DEV__ to false

import sys, re

print(re.sub(r'__DEV__\s*=\s*true;', "__DEV__=false;",
        sys.stdin.read()))
0

对于 iOS，使用 react-native 0.59.0，通过编辑 ios/YourProjectName.xcodeproj/project.pbxproj 文件来实现。

这是该行：

shellScript = "export NODE_BINARY=node\n../node_modules/react-native/packager/react-native-xcode.sh";

用

shellScript = "export NODE_OPTIONS=--max_old_space_size=4096\n../node_modules/react-native/scripts/react-native-xcode.sh";
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